Tongs.



PATENTED FEB. 20, 1906.

G. KERNIN.

TONGS.

APPLIOAT'ION FILED DB0. 14, 1905.

YM Mm.

p'NiTn STATES PATENT Brion.

Specification of Letters Patent.

Patented Feb. 20, 1906.

Application filed December 14,1905. Serial No. 291,677.

To LZZ 'Lu/1,07% t nung conc/57%:

Be it known that I, GUsTAv KERNIN, a citizen of the United States, and aresident of Crandon, in the county of Forest and State of Wisconsin,have invented certain new and useful Improvements in Tongs, and I dohereby declare that the following is a full, clear, and exactdescription thereof.

My invention consists in certain peculiarities of construction andcombination of parts hereinafter particularly set forth with referenceto the accompanying drawings and subsequently claimed, its object beingto provide simple, economical, and eificient tongs especially designedfor the use of lumbermen in skidding logs, although applicable to avariety of uses.

Figure l of the drawings represents a side elevation of my improvedtongs, having parts thereof broken away; and Fig. 2, a transversesection view of the same on the plane indicated b v line 2 2 in Fig. l.

Referring by letter to the drawings7 A B represent sections of anapproximately triangular separable casing having lower side apertures,said sections being held together by bolts b, that also serve as pivotsfor spurtoothed sector ends of a pair of grippers C, that extend throughsaid apertures,said sector ends of the grippers being eccentric on theirpivots. The section A of the casing aforesaid has its inner faceprovided with a central longitudinal groove engaged by a side rib c of asliding draft-bar D, that extends through the open. upper end of saidcasing. The inner end of the draft-bar is tapered and provided withteeth to form racks engaging the sector ends of the grippers aforesaid,and a clevis E is connected to the outer end of said bar in order tofacilitate the attachment of the tongs to a draft appliance.

From the foregoing it will be appreciated that outward movement of thedraft-bar to cause inward swing' of the grippers results in a gradualincrease of power upon said grippers, this being an important feature ofmy improved tongs, particularly when the same are employed in skiddinglogs, owing to the fact that said tongs will not slip on logs of smalldiameter, as do the tongs of common knowledge. It is also to be notedthat the smaller the diameter of the log the tighter the grip of myimproved tongs thereon when the two are engaged.

The number of teeth of each draft-bar is preferablysuch that in case ofthe reduction of the major portion of said teethby wear said bar may beadjusted one tooth to compensate for said wear and consequent lostmotion, the adjustment being effected by taking the tongs apart andreassembling said draft-bar in its engagement with the sector ends ofthe grippers.

I claim` l. The combination of a casing provided with side apertures, apair of grippers that extend through said apertures of the casing andhave spur-toothed sector ends eccentric on pivots within the casing, anda sliding draftbar guided in said casing and having a tapered inner endprovided with rack-teeth engaging the teeth of the sector ends of thegrippers, the whole constituting tongs.

2. The combination of a separable casing provided with side aperturesand having the sections thereof connected by bolts, a pair of grippersthat extend through said apertures of the casing and have spur-toothedsector ends eccentric on said bolts, and a sliding draft-bar guided insaid casing and having a tapered inner end provided with rack-teethengaging the teeth of the sector ends of the grippers, the wholeconstituting tongs.

The combination with a casing provided with side apertures and a centralinner groove longitudinally thereof, a pair of grippers that extendthrough said apertures of the casing and have spur-toothed sector endseccentric on pivots within the casing, a sliding draft-bar having atapered inner end provided with rack-teeth engaging the teeth of thesector ends of the grippers, and a rib on a side of the bar engaging thegroove in the aforesaid casing, the whole constituting tongs.

In testimony that I claim the foregoing I have hereunto set my hand, atCrandon, in the county of Forest and State of Wisconsin, in the presenceof two witnesses.

. GUSTAV KERNIN.

Witnesses:

H. F. LANDECK, J. P. LIBBY.

IOO

